fork download
copy 
  1. #include <iostream>
  2. #include <vector>
  3.  
  4. using namespace std;
  5.  
  6. template <typename T>
  7. struct HvVector
  8. {
  9.     typedef std::vector<T> rt;
  10. };
  11.  
  12. class LetYouDo
  13. {
  14. public:
  15.     template<typename CLASS, typename TYPE>
  16.     LetYouDo(const std::string& name, TYPE (CLASS::*field))
  17.     {
  18.         std::cout << "3" << std::endl;
  19.     }
  20.  
  21.     template<typename CLASS, typename TYPE>
  22.     LetYouDo(const std::string& name, typename HvVector<TYPE>::rt (CLASS::*field), TYPE* p)
  23.     {
  24.         std::cout << "4" << std::endl;
  25.     }        
  26. };
  27.  
  28. class Victim
  29. {
  30. public:
  31.     int m1;
  32.     HvVector<int>::rt m2;
  33. };
  34.  
  35. int main()
  36. {
  37.     Victim v;
  38.     v.m1 = 10;
  39.     v.m2.push_back(10);
  40.     LetYouDo o1("m1", &Victim::m1);
  41.     LetYouDo o2("m2", &Victim::m2, static_cast<int*>(0));
  42.  
  43.     return 0;
  44. }
Success #stdin #stdout 0s 3428KB
comments ()
stdin
copy 
Standard input is empty
stdout
copy 
3
4
https://ideone.com/YawsaB
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!